Productivity
1843 open source Productivity apps
N
Nani?
APK
Nani is an app that allows you to browse a complete bilingual Japanese dictionary offline. Some of its features include: - Entirely free with no ad nor tracking - Look for word by kanji, pronounciation or meaning - Multiple dictionaries enable different functionalities On first start, no dictionary is loaded in the application. It's up to you to select which dictionary you want to use.
F-Droid
Nanji clock widget
APK
Home screen clock widget for language learners. - Chinese, Japanese, Korean, Russian, English and default date/time format - 12/24 hours time format - Japanese era date format - Customizable time zone - Highly customizable appearance - Switch between showing digits/words on tap - Open system alarm app on tap
F-DroidGitHub
NanoLedger
APK
NanoLedger is a data entry app for plain text accounting. It supports the ledger and hledger syntax. You can view all transactions in a file, and easily add a new one. While adding, auto-completion is supported for payee, note and account names.
F-DroidGitHub
Native Alpha
APK
FeaturesShows any website in a borderless full-screen window using Android System WebView.Offers to create home screen shortcuts and retrieves icons in suitable resolution.arious settings (JavaScript, cookies, adblocking, location/camera/microphone access) can be set for every web app individuallyNavigation with multi-touch gestures while browsing.Opt-in adblock with user-selected filter lists.Less memory footprint and no privacy-invading app permissions in comparison to native appsDark mode for Android 10+FAQQ: Why would I need this app if any mobile browser can do the same?A: Mobile browsers usually only are able to create shortcuts which give a native, borderless fullscreen experience if the website has a Progressive Web App (PWA) manifest. Unfortunately, most websites do not offer this feature yet.Q: Can I keep multiple log-in sessions of the same website?A: Yes, this is possible using the sandbox feature of Native Alpha Plus.Q: Why isn't the sandbox feature in Native Alpha Plus enabled by default?A: The sandboxing approach is recommended for specific usage rather than general usage because it can limit the performance of the application and increase the disk usage. Therefore, use it for privacy-invasive websites or websites where you want to be logged in twice, but not for any website just because you can.Q: Why is it not possible to find an icon for a certain website?A: This problem can occur due to multiple reasons. In most cases, the website does not offer a high-resolution icon. If you are a website maintainer and your website icon cannot be found, look at RealFaviconGenerator for further information. If you think it should work, feel free to post the URL and I will look into it.Q: Is this app a dedicated web browser with its own browser engine?A: No. As stated, this app relies on the system built-in Android WebView in order to display the website. For privacy reasons, you can opt to use alternative webviews such as Bromite on rooted phones. Always make sure to use to most recent version of any WebView implementation you use!Q: In constrast to your promise, this app has a large memory footprint!A: This is because Native Alpha makes use of caching in the same way your browser app does, i.e., it saves web content locally on your device. Then it can be loaded faster if you visit the same page again. I will look into a way for better cache management. In the meantime, you can either delete cache regularly yourself or set the "Clear cache after usage" setting in the global settings if memory footprint is a concern for you. However, then websites will take a longer time to load because everything has to be loaded from net.
GitHubIzzyOnDroid
NeatLauncher
APK
The home app (the launcher) to replace ugly home apps that are too colourful, distracting, inefficient, and full of non-sensical icons. Clarity by efficient and elegant design based on text. With configurable quick access to apps, shortcuts, or contacts via a list or by gestures. Supports app shortcuts, both static and dynamic. Search function optionally integrates the contact list, and includes a configurable web search. Tries to have enough configurability without making testing corner cases tedious, to ensure functionality and robustness. Weather info (uses network and location services, if necessary). New app developed from scratch. Takes inspiration from Unlauncher (a fork of Slimlauncher), and Nolauncher, and also feedback of users. Features: - uniform and elegant text-based design - configurable quick access and gestures on home screen - shortcut support (long click on app by default) - hide/show apps (but keep searchable) - apps can be renamed and reordered - good search function for apps - integrated contact list search - integrated, configurable web search - clock options - date format options - weather forecast options (via open-meteo.com) - configurable colour scheme - can use system wallpaper as background - free open source software - no icon set support (no need: no icons at all) - no widget support
F-DroidGitHub
Neer
APK
Neer is an Open-Source Water Reminder App Promoting Hydration and Wellness Without Compromising Privacy. Stay hydrated and healthy with Neer – your personal hydration assistant. Set goals, track your water intake, and achieve optimal hydration effortlessly.
GitHubIzzyOnDroid
Neo Backup
APK
Make and restore backups of apps on your device and save app data to a user-accessible location. Supports backing up and restoring single or multiple apps. Part of Neo Applications. Fork of OAndBackup bringing support for new Android versions and updated looks. Help translate it on Weblate: https://hosted.weblate.org/engage/oandbackupx/. Requires root: Because it copies files from /data/data, /data/app and /system/app. Status: Beta
F-DroidGitHubIzzyOnDroid
Neo Store
APK
A feature-rich quick F-Droid client: * UX focused on empowering users * No cards or inappropriate animations * Fast repository syncing * Standard Android components and minimal dependencies A direct adaptation/modification of Foxy-Droid Copylefted libre software, licensed GPLv3+. \ Use, study, change, and share; with all.
F-DroidGitHubIzzyOnDroid
NeoLinker
APK
Hybrid version of Flashify & Browser-Intercept (without any permission or security weakness) '''Flashify Open websites in another browser via Share option''' ...is a simple utility app that takes a url from the Share Intent in Android and opens it in another browser. It was orginally designed to easily open Adobe Flash websites in a browser that supports Flash but is equally useful for quickly testing mobile websites in multiple browsers. https://github.com/GodsMoon/Flashify '''browser-intercept''' shows url & choice of browsers before launching links from apps. https://github.com/intrications/browser-intercept Iterate on NeoLinker icon will switch to: * @view/browse: link * @SEND/share: {link} * @view/browse: searX{link} * @view/browse: Gibiru{link} * @view/browse: VirusTotal{domain(link)} (included: sdk29 + @PROCESS_TEXT(Lollipop api22) & @WEB_SEARCH)
F-Droid
NerdCalci
APK
NerdCalci is a powerful calculator designed for nerds and power users who need more than basic arithmetic. Features: - Offline - Works without internet - Variable support - Define variables and reuse them in calculations - Percentage calculations - Natural syntax like "20% of 50000" or "15% off 1000" - Custom functions - Define your own functions with multi-statement support and scope isolation - Dynamic variables - Quickly compute block sums (`total`) and averages (`avg`) - Syntax highlighting - Color-coded numbers, variables, operators, and comments - Smart error diagnostics - See human-friendly explanation of math or syntax errors - Auto-completion - Smart suggestions for variable names - Comments - Document your calculations with # comments - Multiple files - Organize calculations in separate files with auto-save - Pin files - Keep frequently used files at the top - Search - Search your files easily - Duplicate files - Create a copy of a file with a new name - Undo/Redo - Up to 30 steps per file - Backups - Automatically or manually backup your files to app storage or a custom folder - Restore from backups - Restore your files from backups - Copy with results - Copy calculations with their results - Export - Share your calculations as a PNG image or a multi-page PDF - Dark/light theme - System, dark, or light mode support - Line numbers - Easy reference and navigation Perfect for: - Quick calculations with reusable values - Budget planning and financial calculations - Unit conversions and formulas - Educational purposes and learning - Any scenario where you need to document and reuse calculation values NerdCalci combines the simplicity of a calculator with the power of a text editor. As a capable alternative to text-based calculators like Numi, Calca, and Soulver, it is ideal for developers, students, accountants, and anyone who frequently works with numbers.
F-DroidGitHubIzzyOnDroid
NetCounter
APK
NetCounter keeps track of your bandwidth usage (both cell and Wi-Fi) and displays it to you in an easy to read format. It can also alert you when you reach a predefined limit.
F-Droid
NetUpDown
APK
Upstream is a small tool to show net speed as floating window in real time.Note: there was no activity in the app's repo (or by its author) since 2018, so there won't be any updates to the app here.
GitHubIzzyOnDroid
Netclip
APK
Telnet to your Android device, send snippets of text to it and copy them to the device clipboard. It is useful for people who want to copy/paste text to their phones or tablets.
F-DroidGitHub
N
Network
APK
This is a simple shortcut-app to a hidden preference, where the user can switch between the different network-modes and see general info. This is a fork of https://github.com/scheich/Network with Android 11 support added.
F-DroidGitHub
Network Scanner
APK
A network scanner that ses the new UI components Cardview and Recyclview. It displays the IP, hostname, and MAC address for all of the network devices on the network.
F-DroidGitHub
Network Switch - One-tap network switching
APK
Network Switch provides control over 34 network modes including 2G, 3G, 4G, and 5G configurations. Works with both Root and Shizuku permissions.Features34 network modes: Basic (2G/3G/4G/5G), Combined, Regional (CDMA, TD-SCDMA), GlobalConfigurable toggle between any two modesQuick Settings tile with current/next mode displayBattery and speed optimization through mode selectionModern Material Design 3 interfacePrivacy-focused (no internet permissions)Compatible with rooted (Root) and non-rooted (Shizuku) devicesUse CasesOptimize battery life, maximize speed, improve coverage in poor signal areas, manage data usage, and test network compatibility.
GitHubIzzyOnDroid
Neural Network Simulator
APK
Neural network nodes, or \'neurons\', are simulated brain cells. Neurons can be created by tapping anywhere on the screen.
F-DroidGitHub
NeuroCalm
APK
NeuroCalm is a focused, minimal app designed to stimulate the auricular branch of the vagus nerve using controlled vibration patterns — promoting calm, relaxation, and parasympathetic activation.Key Features:Targeted Stimulation: Designed for use at the cymba conchae (left ear), based on current aVNS research.Multiple Modes: Choose from 4 evidence-inspired stimulation patterns (Standard, Burst, Continuous, Amplitude Modulated).Simple Interface: Start with one tap. No account, no tracking, no distractions.Custom Duration: Use the time slider or select from recommended durations.Offline & Private: No internet needed. Everything runs fully on-device.⚠️ Disclaimer:This app is not a medical device. Use at your own risk. Possible side effects include tingling, dizziness, or skin irritation. Continuous use may warm the device.
GitHubIzzyOnDroid
NeuroLab
APK
F-DroidGitHub
N
NextDNS
Web
Cloud-based DNS firewall with ad blocking, tracker blocking, and parental controls.
NextPush
APK
UnifiedPush distributor using Nextcloud server. It requires the associated Nextcloud application: https://apps.nextcloud.com/apps/uppush . The SSO login requires the Nextcloud App to work : https://f-droid.org/packages/com.nextcloud.client/ . You can also connect directly to Nextcloud. We recommend using an application password. More information about UnifiedPush at https://unifiedpush.org .
F-DroidIzzyOnDroid
Nextcloud Cookbook
APK
This app is a viewer for recipes in Nextcloud App. The synchronisation can be done direct (with nextloud) or with the local storage. Synchronize directly works with Single Sign On (SSO) per nextcloud client. The local storage can synchronized in other ways, there is no dependency to a client. First steps After first installation (or with the current update from 2.x.x to 3.0.0) it shows the login screen. If the nextcloud client is installed and you want to synchronize direct with the nextcloud server, you can use the login button to show a list of accounts and you choose the account to login. Then the app will download the recipes with the REST api. If you want to synchronize with the local storage, you can skip the login ("Skip for local storage"). After that, you have to choose the recipe directory in the settings and permit access. In the app "All categories" is the main view, there the app is loading the recipes from the choosen directory. When using the Nextcloud Android client, you find the directory on your storage under Android/media/com.nextcloud .client/nextcloud/<your account>/<folder>. You also can choose the theme in the settings. After that, the start view has a list of recipes and you select a recipe to view the details. IMPORTANT: With direct pick of the nextcloud folder there will no images shown and the uri can't be stored right. Perhaps at next app start no recipes can be loaded. Therefore it is better to use the above mentioned path on the SD card (see First steps).
F-DroidGitHub
Nextcloud Notes
APK
Android client for Nextcloud Notes. 🚀 Features * Multiple accounts 👥 * List, create, edit, share, search and delete notes 📝 * Share text and links as new note into the app 📩 * Toggling checkboxes in view mode ✅ * Mark notes as favorite ⭐ * Bulk delete 🗑️ * In-note search 🔍 * Single note widget and note list widget 📊 * Dark Mode 🌙 * Render Markdown ✨ * Translated in many languages 🌎 * Context based formatting 🧰 * App-lock 🔒 🔗 Requirements * Nextcloud Server (https://nextcloud.com/) * Nextcloud Notes Server App (https://apps.nextcloud.com/apps/notes) * Nextcloud Files Android App (https://play.google.com/store/apps/details?id=com.nextcloud.client) 👨👩👦 Join the team * https://github.com/nextcloud/notes-android#family-join-the-team
F-DroidGitHub
Nheengaré
APK
Nheengaré is an open source project that aims to create an online dictionary of nheengatu.
F-DroidGitHub